Lighting device



FIG. 1 is a top, front, and right side perspective view of a lighting device showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line disclosure of elements within areas provided with surface shading are understood to represent unclaimed portions of the article in which the design is embodied, and broken lines between claimed areas which are provided with surface shading and unclaimed areas which are not provided with surface shading are understood to represent an unclaimed boundary between claimed and unclaimed areas. 

We claim the ornamental design for a lighting device, as shown and described. 